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Asscher|Lab Grown|IGI

1.66ct D FL Asscher Lab Grown Diamond

ID • D/FL • IGI LG840634858

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG840634858

Diamond specifications and retailer prices

From $719 SGD
£443 GBP
As of November 2, 2026
Save $4,013 SGD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,732 SGD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.66ct lab-grown asscher diamond

This 1.66ct lab-grown asscher sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840634858 or 840634858. Listed at 16 retailers as of November 2, 2026, with prices from $719 to $4,732, a $4,013 spread on the same certified stone. Brilliant Earth lists it at $4,732. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634858
Dimensions6.57 × 6.47 × 4.30 mm
L/W Ratio1.02
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.57 mm6.47 mm1.66 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634858
Side View
Table 66.0%Crown 35°Girdle: MediumPavilion 39.7°Culet: NoneDepth 66.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $4,732 SGD|Low: $719 SGD|High: $6,765 SGD|Avg: $2,294 SGD|-30.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 9$719 SGD
Retailer 6$794 SGD
Retailer 16$863 SGD
Retailer 3$1,070 SGD
Retailer 11$1,122 SGD
Retailer 10$1,173 SGD
Retailer 15$1,399 SGD
Retailer 4$1,586 SGD
Retailer 2$1,660 SGD
Retailer 5$2,228 SGD
Retailer 14$2,362 SGD
Retailer 13$2,498 SGD
Retailer 7$2,901 SGD
Retailer 8$4,046 SGD
Retailer 12$4,719 SGD
Brilliant Earth$4,732 SGD

18 data points across 16 retailers

16 retailers$719 SGD to $4,732 SGD

A
Cheapest Retailer
-
$719 SGD
£443 GBP
A
Retailer 2
-
$794 SGD
$621 USD
View
Final sale: no returns
A
Retailer 3
-
$863 SGD
$675 USD
View
A
Retailer 4
-
$1,070 SGD
$837 USD
View
A
Retailer 5
-
$1,122 SGD
£691 GBP
View
A
Retailer 6
-
$1,173 SGD
ZAR 14,819 ZAR
View
A
Retailer 7
-
$1,399 SGD
€1,042 EUR
View
B+
Retailer 8
-
$1,586 SGD
$1,240 USD
View
B+
Retailer 9
-
$1,660 SGD
$1,298 USD
View
B+
Retailer 10
-
$2,228 SGD
$1,742 USD
View
B+
Retailer 11
-
$2,362 SGD
$1,847 USD
View
B+
Retailer 12
-
$2,498 SGD
£1,538 GBP
View
B+
Retailer 13
-
$2,901 SGD
View
B
Retailer 14
-
$4,046 SGD
$3,164 USD
View
B
Retailer 15
-
$4,719 SGD
$3,690 USD
View
Most Expensive
B
Brilliant Earth
21861625A · Nov 2
$4,732 SGD
$3,700 USD
View
15 more retailers have this diamond
Prices start from $719 SGDSave up to $4,013 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.66ct Asscher
$719 SGD